What are some interesting metrics/analysis you look at to present to your customer?

There are a lot of generic metrics out there that most CS teams may or may not share, I am curious what are some of the more interesting takes you have shared in the past?

For me, a few stand out

• Daily Active Users divided by Daily Case Count.  I wanted to start tracking the ratio to see if things trended up or down over time.
• Count of overall activity (as defined by how we have event tracking set up) divided by unique log-ins.  This would give me a number that would show, on average, how many "actions" per user was occurring.  At my old job, anything below a 1.0 was not great as that would suggest a lot of log-ins but not much in the form of site interaction